CVE-2026-44090

9.3 criticalEPSS 0.7%

Critical (9.3). EPSS 0.7% chance of exploitation in the next 30 days.

Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2026-07-30
Modified: 2026-07-30
Record from: the NVD, synced 2026-10-19

References

https://www.certvde.com/en/advisories/VDE-2026-008/

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